i feel like not many ppl are paying attention to the two older brothers. they've gotten more mysteriousness than the father and were the last to be introduced. not only that, yonji kinda talked them up a bit and sanji is literally trembling, which we have never seen before. sanji is gonna have that traumatizing past and the cause of it are those two brothers. sn: the brothers may even be stronger than the father.
in regards to cracker, i was disappointed with the chapter in the spoilers. ive had time to get over that and now thinking about whats to come. (i was disappointed bc the OUTCOME of the fight was skipped). we've basically been handed how the fight will end. cracker and luffy will fight and luffy will be exhausted until he finally lands a blow on crackers' real body. once that happens cracker will be defeated. once that happens, luffy will rest and randomly show up at the castle to the surprise of everyone.
for the comparison with doffy and cracker. fighters aren't made equal. you can be overall stronger than another person but have a stat thats lesser than the weaker person and vice versa. I.E. cracker may have more offensive power than doffy but defensively (which would need to be showed) doffy will probably beat him there or better put cracker could be a glass cannon. this is all a speculation for now and nothing is proven to be fact to who is stronger or weaker between doffy and cracker.
overall, not a bad chapter and will definitely be more fun reading it in bulk.
oh one last thing, wtf is going on with the homies and nami?